7566937484863 has 2 divisors, whose sum is σ = 7566937484864. Its totient is φ = 7566937484862.

The previous prime is 7566937484791. The next prime is 7566937484903. The reversal of 7566937484863 is 3684847396657.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7566937484863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7566937484863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7566937488863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3783468742431 + 3783468742432.

It is an arithmetic number, because the mean of its divisors is an integer number (3783468742432).

Almost surely, 2^{7566937484863} is an apocalyptic number.

7566937484863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7566937484863 is an equidigital number, since it uses as much as digits as its factorization.

7566937484863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4389396480, while the sum is 76.

The spelling of 7566937484863 in words is "seven trillion, five hundred sixty-six billion, nine hundred thirty-seven million, four hundred eighty-four thousand, eight hundred sixty-three".